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Non-equiblirium growth behavior of interface migrated with solute segregation

Research Project

Project/Area Number 19H02473
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 26050:Material processing and microstructure control-related
Research InstitutionTohoku University

Principal Investigator

Miyamoto Goro  東北大学, 金属材料研究所, 准教授 (60451621)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2021: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Keywords相変態 / エネルギー散逸 / ソリュートドラッグ / 偏析 / 三次元アトムプローブ / 界面整合性 / 異相界面 / 分配 / 非平衡成長 / 非平衡静養
Outline of Research at the Start

本研究では,移動する異相界面への溶質元素偏析によって引き起こされる非平衡状態を定量的かつ系統的に測定し,溶質元素-異相界面の相互作用のダイナミクスを確立することを目指す.その要諦は,異相界面移動の制御に不可欠であるがこれまで推測するしかなかった溶質偏析に関する種々の因子(異相界面における界面整合性,溶質元素の偏析エネルギー,偏析幅,溶質元素の界面拡散係数や溶質元素間の相互作用)を同一界面における非平衡度,成長速度,元素偏析量といった多面解析によって解明することである.

Outline of Final Research Achievements

In order to control the phase transformation microstructure that develops during heat treatment of steels, the effects of Mo, Mn, and Ni additions on the interfacial migration of interphase boundary were investigated. Mo segregates at the interface and consumes a large amount of energy for interfacial migration, but the effect disappears when the migration velocity is small. On the other hand, Mn consumes a large amount of energy regardless of the interfacial migration velocity and suppresses interfacial migration even at slow interfacial migration velocities. Furthermore, 3DAP analyses reveal the nanoscale elemental enrichment near the interface that causes these energy consumption and it was found that the enrichment behavior differs greatly depending on the interfacial character. A model was developed to quantitatively predict these elements behavior, and a parameterization method was proposed for each interface parameter.

Translated with www.DeepL.com/Translator (free version)

Academic Significance and Societal Importance of the Research Achievements

本研究で明らかになった添加元素と異相界面の相互作用の定量的な理解は、鉄鋼材料を始めとする構造用金属材料の高機能化に資するものであると同時に、少ない添加元素で効率的に相変態挙動を制御することができるようになるため、省資源化にも貢献することが期待される。また、異相界面における添加元素の振る舞いが明確になったことから、これまで想像するしかなかった界面における精緻な元素活用を可能にするものである。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (26 results)

All 2022 2021 2020 2019

All Journal Article (11 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 11 results,  Open Access: 2 results) Presentation (15 results) (of which Int'l Joint Research: 6 results,  Invited: 3 results)

  • [Journal Article] Enhanced hardening by multiple microalloying in low carbon ferritic steels with interphase precipitation2022

    • Author(s)
      Zhang Yongjie、Miyamoto Goro、Furuhara Tadashi
    • Journal Title

      Scripta Materialia

      Volume: 212 Pages: 114558-114558

    • DOI

      10.1016/j.scriptamat.2022.114558

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ferrite Transformation from Fe-0.3N Austenite2021

    • Author(s)
      Sato Mitsutaka、Murata Takamasa、Shimaya Shota、Miyamoto Goro、Furuhara Tadashi
    • Journal Title

      ISIJ International

      Volume: 61 Issue: 1 Pages: 343-349

    • DOI

      10.2355/isijinternational.ISIJINT-2020-166

    • NAID

      130007969958

    • ISSN
      0915-1559, 1347-5460
    • Year and Date
      2021-01-15
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of cementite and retained austenite on austenite reversion from martensite and bainite in Fe-2Mn-1.5Si-0.3C alloy2021

    • Author(s)
      Zhang Xianguang、Miyamoto Goro、Toji Yuki、Zhang Yongjie、Furuhara Tadashi
    • Journal Title

      Acta Materialia

      Volume: 209 Pages: 116772-116772

    • DOI

      10.1016/j.actamat.2021.116772

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Formation of abnormal nodular ferrite with interphase precipitation in a vanadium microalloyed low carbon steel2021

    • Author(s)
      Wang Zhenqiang、Zhang Yongjie、Miyamoto Goro、Furuhara Tadashi
    • Journal Title

      Scripta Materialia

      Volume: 198 Pages: 113823-113823

    • DOI

      10.1016/j.scriptamat.2021.113823

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Unraveling the effects of Nb interface segregation on ferrite transformation kinetics in low carbon steels2021

    • Author(s)
      Dong Haokai、Zhang Yongjie、Miyamoto Goro、Inomoto Masahiro、Chen Hao、Yang Zhigang、Furuhara Tadashi
    • Journal Title

      Acta Materialia

      Volume: 215 Pages: 117081-117081

    • DOI

      10.1016/j.actamat.2021.117081

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Interaction of Alloying Elements with Migrating Ferrite/Austenite Interface2020

    • Author(s)
      Miyamoto Goro、Furuhara Tadashi
    • Journal Title

      ISIJ International

      Volume: 60 Issue: 12 Pages: 2942-2953

    • DOI

      10.2355/isijinternational.ISIJINT-2020-216

    • NAID

      130007956957

    • ISSN
      0915-1559, 1347-5460
    • Year and Date
      2020-12-15
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Weak influence of ferrite growth rate and strong influence of driving force on dispersion of VC interphase precipitation in low carbon steels2020

    • Author(s)
      Yongjie Zhang, Kunio Shinbo, Goro Miyamoto, Tadashi Furuhara
    • Journal Title

      Acta Materialia

      Volume: 186 Pages: 533-544

    • DOI

      10.1016/j.actamat.2020.01.025

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A comparative study on intrinsic mobility of incoherent and semicoherent interfaces during the austenite to ferrite transformation2020

    • Author(s)
      Dong Haokai、Zhang Yongjie、Miyamoto Goro、Chen Hao、Yang Zhigang、Furuhara Tadashi
    • Journal Title

      Scripta Materialia

      Volume: 188 Pages: 59-63

    • DOI

      10.1016/j.scriptamat.2020.07.007

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Comparative Study of VC, NbC, and TiC Interphase Precipitation in Microalloyed Low-carbon Steels2020

    • Author(s)
      Zhang Yongjie、Miyamoto Goro、Shinbo Kunio、Furuhara Tadashi
    • Journal Title

      Metallurgical and Materials Transactions A

      Volume: 51 Issue: 12 Pages: 6149-6158

    • DOI

      10.1007/s11661-020-06001-x

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Chemical boundary engineering: a new route towards lean, ultrastrong yet ductile steel2020

    • Author(s)
      Ran Ding, Yingjie Yao, Binhan Sun, Geng Liu, Jianguo He, Tong Li, Xinhao Wan, Zongbiao Dai, Dirk Ponge, Dierk Raabe, Chi Zhang, Andy Godfrey, Goro Miyamoto, Tadashi Furuhara, Zhigang Yang, Sybrand van der Zwaag, Hao Chen
    • Journal Title

      Science Advances

      Volume: 6 Issue: 13

    • DOI

      10.1126/sciadv.aay1430

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quantitative analysis of Mo solute drag effect on ferrite and bainite transformations in Fe-0.4C-0.5Mo alloy2019

    • Author(s)
      Goro Miyamoto, Kentaro Yokoyama, Tadashi Furuhara
    • Journal Title

      Acta Materialia

      Volume: 177 Pages: 187-197

    • DOI

      10.1016/j.actamat.2019.07.040

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 低炭素鋼におけるVC相界面析出におよぼすフェライト/オーステナイト方位関係の影響2021

    • Author(s)
      張咏杰,宮本吾郎,古原忠
    • Organizer
      日本顕微鏡学会第77回学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] C 添加によるフェライト粒界でのP 偏析の抑制効果2021

    • Author(s)
      山﨑康一朗、張咏杰, 宮本吾郎, 古原忠
    • Organizer
      日本鉄鋼協会第182回秋季講演大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] (ベイナイト+γ)組織中の不均一な炭素分布とγの熱的安定性の関係2021

    • Author(s)
      渡邊未来, 宮本吾郎, 諸岡聡, 古原忠
    • Organizer
      日本鉄鋼協会第182回秋季講演大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 炭素添加によるフェライト粒界でのリン偏析の抑制効果2021

    • Author(s)
      山崎康一朗,張咏杰, 宮本吾郎, 古原忠
    • Organizer
      日本熱処理技術協会第92 回(2021 年秋季)講演大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] SEGREGATION AND LOCAL PARTITIONING OF Mn AT MIGRATING FERRITE / AUSTENITE INTREFACE2021

    • Author(s)
      Goro Miyamoto, Tomoki Harada, Tadashi Furuhara
    • Organizer
      ASIA STEEL 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comparison of driving force necessary for bainite and martensite transformations in steels2021

    • Author(s)
      Goro Miyamoto, Tadashi Furuhara
    • Organizer
      16th International Conference on Martensitic Transformation (ICOMAT2022)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Effects of carbon and molybdenum additions on segregation of phosphorus to ferrite grain boundary2021

    • Author(s)
      Zhang, Yongjie; Ikeda, Kohei; Miyamoto, Goro; Furuhara, Tadashi
    • Organizer
      Thermec2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Formation mechanism of coarse austenite during cooling after hot forging in case hardening steels2021

    • Author(s)
      Takeshi Miyazaki, Takeshi Fujimatsu, Goro Miyamoto, Tadashi Furuhara
    • Organizer
      ADVANCES IN METALLURGY OF LONG AND_FORGED_PRODUCTS
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mn 添加鋼の二相域焼鈍におけるオーステナイト逆変態挙動2021

    • Author(s)
      宮本吾郎、古原忠、張 献光
    • Organizer
      日本鉄鋼協会第180回秋季講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] フェライト粒界におけるP偏析におよぼすC, Mo添加の影響2021

    • Author(s)
      張咏杰, 池田幸平, 木津谷茂樹, 宮本吾郎, 古原忠
    • Organizer
      日本鉄鋼協会第180回秋季講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Segregation and local partitioning of Mn at migrating ferrite / austenite interface2021

    • Author(s)
      宮本吾郎・原田智樹・古原忠
    • Organizer
      日本鉄鋼協会第180回秋季講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Mo, Mn, Ni とα / γ 成長界面との相互作用2021

    • Author(s)
      宮本吾郎・原田智樹・横山健太郎・古原忠
    • Organizer
      日本鉄鋼協会第181回春季講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Segregation and local partitioning of Mn in ferrite / austenite interface2020

    • Author(s)
      宮本吾郎・原田智樹・古原忠
    • Organizer
      第179回春季講演大会東工大
    • Related Report
      2019 Annual Research Report
  • [Presentation] 3DAP Analysis of Solute Segregation at Ferrite or Bainite / Austenite Interface2019

    • Author(s)
      Goro Miyamoto, Kentaro Yokoyama, Tadashi Furuhara
    • Organizer
      PRICM10
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Quantitative analysis of heterogeneous solute segregation at austenite grain boundary or austenite / ferrite interphase boundaries ~ three dimensional atom probe analysis complemented with austenite reconstruction method ~2019

    • Author(s)
      Goro Miyamoto, Tadashi Furuhara
    • Organizer
      MS&T2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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